activity
20202026
most citedUnoriented 2-dimensional TQFTs and the category

1 citations · 1 across the 11 of their papers we have counts for

collaborators

13 papers

math.RT2026

Lie algebras in symmetric tensor categories

Iván Angiono, Agustina Czenky, Pavel Etingof +3

We develop the general theory of Lie algebras in symmetric tensor categories. We prove categorical versions of classical results such as Engel's theorem, Cartan's criterion, and th…

math.QA2026

NIM-representations of Tambara-Yamagami generalizations

Agustina Czenky, Emily McGovern, Melody Molander +2

We compute and classify the irreducible non-negative integer matrix (NIM-)representations of two proposed generalizations of the Tambara-Yamagami fusion ring, as studied by Jordan-…

math.QA2025

Pivotal Brauer-Picard groupoids and graded extensions

Agustina Czenky, David Jaklitsch, Dmitri Nikshych +4

We develop pivotal and spherical versions of graded extension theory. We define the corresponding analogues of Brauer-Picard -categorical groups and realize them as fixed points…

math.QA2025

Cochain valued TQFTs from nonsemisimple modular tensor categories

Agustina Czenky, Cris Negron

We show that a vector space valued TQFT constructed in work of De Renzi et al. [DGGPR23] extends naturally to a topological field theory which takes values in the symmetric monoida…

math.NT2025

Egyptian fractions for few primes

Agustina Czenky, Emily McGovern, Julia Plavnik +2

We study solutions to the Egyptian fractions equation with the prime factors of the denominators constrained to lie in a fixed set of primes. We evaluate the effectiveness of the g…

math.QA2024

On extended Frobenius structures

Agustina Czenky, Jacob Kesten, Abiel Quinonez +1

A classical result in quantum topology is that oriented 2-dimensional topological quantum field theories (2-TQFTs) are fully classified by commutative Frobenius algebras. In 2006,…

math.QA2024

On Frobenius-Schur exponent bounds

Agustina Czenky, Julia Plavnik, Andrew Schopieray

Here we study bounds on the Frobenius-Schur exponent of spherical fusion categories based on their global dimension generalizing bounds from the representation theory of finite-dim…

math.QA2024

Diagramatics for cyclic pointed fusion categories

Agustina Czenky

We give a parametrization of cyclic pointed categories associated to the cyclic group of order in terms of -th roots of unity. We also provide a diagramatic description of t…

math.QA2023

On modular categories with Frobenius-Perron dimension congruent to 2 modulo 4

Akshaya Chakravarthy, Agustina Czenky, Julia Plavnik

We contribute to the classification of modular categories with . We prove that such categories have group of invert…

math.QA2023★ 1 cited

Unoriented 2-dimensional TQFTs and the category

Agustina Czenky

We construct a family of unoriented 2-dimensional cobordism theories parametrized by certain triples of sequences. We also prove that some specializations of these sequences yield…

math.QA2023

Classification of low-rank odd-dimensional modular categories

Agustina Czenky, William Gvozdjak, Julia Plavnik

We prove that any odd-dimensional modular category of rank at most 23 is pointed. We also show that an odd-dimensional modular category of rank 25 is either pointed, perfect, or eq…

math.QA2022

Remarks on symmetric fusion categories of low rank in positive characteristic

Agustina Czenky

We give lower bounds for the rank of a symmetric fusion category in characteristic in terms of . We prove that the second Adams operation is not the identity for…

math.QA2020

On odd-dimensional modular tensor categories

Agustina Czenky, Julia Plavnik

We study odd-dimensional modular tensor categories and maximally non-self dual (MNSD) modular tensor categories of low rank. We give lower bounds for the ranks of modular tensor ca…